.header {
    background-image: url("../images/login-bg.jpg");
    position: absolute;
}

html, body, #app, .layout, .ivu-layout {
    height: 100%;
}

.ivu-tree ul {
    font-size: 14px !important;
}

.ivu-layout-content {
    flex: 1 !important;
}

.icons {
    height: calc(100% - 90px);
    zoom: 1;
}

.ivu-col {
    padding-left: 8px;
    padding-right: 8px;
}